OCR Text |
Show Way to Test Condition of the Ignition Coil A good way for an amateur to test the condition of the ignition coll is to hold a spark plug wire various distances from the outside of the engine en-gine while ignition switch is on and engine Is being turned over. The coll to be in good condition should give a spark when the wire is at least three-quarters three-quarters of an Inch away, but It can be used if It sparks at a distance of three-eighths of an inch. The coll which gives a spark this distance outside out-side the engine will create one at the spark plug under compression about a sixteenth of an inch long. The coll which will not spark at a distance of a quarter of an inch outside the cylinder cyl-inder is not advisable for use, especially especial-ly In winter, as the gas charge admitted ad-mitted to the cylinders is harder to Ignite. |